Home / 1,425,128.58-1,966,709.26-813,269.16

Finding the Fourth Proportional to 1,425,128.58, 1,966,709.26 and 813,269.16

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Solution

The fourth proportional to 1,425,128.58, 1,966,709.26 and 813,269.16 is: 1,122,329.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,425,128.58 : 1,966,709.26 = 813,269.16 : x
  2. Step 2: Convert to fraction form
    1,425,128.58/1,966,709.26 = 813,269.16/x
  3. Step 3: Cross multiply
    1,425,128.58x = 1,966,709.26 × 813,269.16
  4. Step 4: Simplify right side
    1,425,128.58x = 1,599,463,988,861.01
  5. Step 5: Solve for x
    x = 1,599,463,988,861.01/1,425,128.58
  6. Step 6: Final answer
    x = 1,122,329.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.